ffmpeg-4.4.4_2+gpl2+nonfree: ld error on Sonoma

[abaldoni]

Compiling ffmpeg-4.4.4_2 on Sonoma 14.0 fails with the following error:

:info:build ld: warning: -single_module is obsolete
:info:build ld: warning: ignoring duplicate libraries: '-lfreetype', '-liconv', '-lintl', '-lm', '-lvpx', '-lz'
:info:build ld: building exports trie: duplicate symbol '_av_add_i'
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)
:info:build gmake: *** [ffbuild/library.mak:103: libavfilter/libavfilter.7.dylib] Error 1